Improvement in trusses



wmetassem JoIIN URNI-IAM'OF BATAVI'A, ILLINOIS.

Letters Patent No. 92,158, datec'ZJuly 6, 1869.

nvrPRovEMBNT IN TRUssBs.

The Schedule referred to in these Letters Patent and makingvpaxt of the same To whom, 'it may concern Be it known that I, J oHN BURNHAM, of Batavia, in the county ot' Kane, and State of Illinois, have. invented anew andl useful Improvement in Trusses; and I do declare that the following is a true and accurate description thereof', reference bei1ig"liad'to the accompanying drawings, and to the letters oi' reference marked thereon, and being a part'of' this specifica-tion.

Figure 1 is a perspective view of' my invention.

4The nature ot' this invention relates to an improvement in trusses; and consists in constructing them with a slotted plate moving upon the pad-lever, and attached by a hinge to shoulders fixed tirlnly to the spring of the lruss, by which arrangement the pad can be adjusted to any desired pressure against the body of the wearer.

A A, in thel drawing, represent shoulders fixed firmly to an extension ofthe truss-spring, to which shoulders the plate C is hinged by a pivot.

B represents the padlever hinged on a pivot produced by -the further extension of the 'truss-spring beyond the shoulders A, and fastened by a screw to the pad E.

C is a. movable plate hinged to the shoulders A A by a pivot, and moving freely upon the face of the nad-lever thelengt-h of the slot D.

F is a screw by which the plate U is fastened in Y position.

When the truss is applied, the pad E is pressed against the body, and by such pressure the plate C is raised on the pad-lever B. When the desired press- Aure is attained, the screw F -is turned down, tirmly fastening the plate C to the pad-lever B, thus holding `the pad 'iI'rInly in position. When it. is desired to 'lighten the pressure, or to increase it, the effect may pressure against it produced by' a set-screw, substantially as and for the purpose set forth'. V JOHN BURNHAM.

Witnesses: v

Guo. 0. MANoHEsTE WM. M. VAN NOBTWICK. 

